20293580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{3511}}^1$

素因数の和:3554

約数の個数: 36

約数和(自身を含む): 45283728

約数和(自身を除く): 24990148

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 3511, 5780, 7022, 14044, 17555, 35110, 59687, 70220, 119374, 238748, 298435, 596870, 1014679, 1193740, 2029358, 4058716, 5073395, 10146790, 20293580]

約数ペア:

[(1, 20293580), (2, 10146790), (4, 5073395), (5, 4058716), (10, 2029358), (17, 1193740), (20, 1014679), (34, 596870), (68, 298435), (85, 238748), (170, 119374), (289, 70220), (340, 59687), (578, 35110), (1156, 17555), (1445, 14044), (2890, 7022), (3511, 5780)]